文章基本信息

标题：Security Evaluation of Robust Chaotic Block Cipher
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作者：Abdul Hamid M. Ragab ; Osama S. Farag Allah ; Khalid W. Magld 等
期刊名称：International Journal of Soft Computing & Engineering
电子版ISSN：2231-2307
出版年度：2014
卷号：3
期号：6
页码：9-16
出版社：International Journal of Soft Computing & Engineering
摘要：this paper investigates an enhanced robust chaotic block cipher (RCBC) which is used for potential increasing security. It makes heavy use of non-linear Boolean functions including parity and multiplexer functions, in addition to multiplication primitive operation with block size of 256-bits. It greatly guaranteed an increased diffusion achieved per round, allowing for greater security and fewer rounds. Comparative analysis of the cipher with different algorithms such as RC6, and RC5 is investigated; regarding design parameters and speed. The cipher is tested among its several design parameters including word size, number of rounds, and secret key length and their optimal choice values. Security estimation for digital imaging against brute-force, statistical, and differential attacks is explored from strict cryptographic viewpoint. Thorough experimental tests are carried out with detailed analysis, demonstrating the high security of the cipher
关键词：Block ciphers; Symmetric encryption; Chaos; and Security analysis